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开发和实验验证一个双轴推力支架,用于电动推进器推力向量的表征
E Gourcerol1,2, V Désangles1, D Packan1
1DPHY, ONERA, Université de Paris-Saclay, 91123 Palaiseau, France.
The Review of scientific instruments
|September 10, 2025
概括
一个新的双轴推力支架精确地测量了电动推进器的性能. 这种仪器有效地减轻了热和磁干扰,从而能够准确地描述电推进的特征.
科学领域:
- 航空航天工程 航空航天工程
- 实验物理实验物理学
背景情况:
- 精确测量电推进器性能对于航天器推进发展至关重要.
- 现有的推力支架在同时测量多组件推力向量和减轻环境影响方面面临挑战.
研究的目的:
- 开发和验证一个双轴推力支架,用于直接,同时测量电推力推力向量组件.
- 实施校准方法并评估推力支架的角度分辨率和不确定性的准确性.
- 评估仪器减轻电动推进系统产生的热和磁效应的能力.
主要方法:
- 使用堆叠的单轴阶段,具有可变形平行四边形几何形状的双轴推力支架的构建.
- 使用质量沉积方法进行校准,包括轴间交叉校正.
- 实施一种新的方法来比较理论和实验角度不确定性.
- 使用具有已知的操作角度和推力水平的旋转冷气推进器进行实验验证.
主要成果:
- 推力支架在10°半角内实现0.1°的理论角度分辨率,总推力在645μN以上.
- 实验不确定性在0.7° (低于630μN) 和1.2° (高于630μN) 测量,并确定了系统错误的来源.
- 在超过250μN的总推力下实现理论0.2°不确定性的潜力,并进行进一步的改进.
- 从电子旋转子共振 (ECR) 推进器证明有效地减轻热和磁效应.
结论:
- 开发的双轴推力支架可提供准确且同时的推力向量组件测量.
- 该研究确定了系统错误的来源,并概述了实现更高精度的途径.
- 该仪器适用于通过有效管理环境干扰来表征电推进器,包括ECR推进器.
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